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Finding the Fourth Proportional to 3,511.71, 4,846.23 and 1,939.86

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Solution

The fourth proportional to 3,511.71, 4,846.23 and 1,939.86 is: 2,677.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.71 : 4,846.23 = 1,939.86 : x
  2. Step 2: Convert to fraction form
    3,511.71/4,846.23 = 1,939.86/x
  3. Step 3: Cross multiply
    3,511.71x = 4,846.23 × 1,939.86
  4. Step 4: Simplify right side
    3,511.71x = 9,401,007.73
  5. Step 5: Solve for x
    x = 9,401,007.73/3,511.71
  6. Step 6: Final answer
    x = 2,677.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.